/*
 * MIT License
 *
 * Copyright (C) 2023 Huawei Device Co., Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import { IdGeneratorKey } from './IdGeneratorKey';

export class IdGenerator {
  private static idMap = new Map<IdGeneratorKey, number>();
  private static nextKey = 0;

  static getIdForKey(idGeneratorKey: IdGeneratorKey): number {
    var id: number = undefined;
    this.idMap.forEach((value, key) => {
      if (key.equals(idGeneratorKey)) {
        id = value;
      }
    });
    if (id !== undefined) {
      return id;
    }
    this.idMap.set(idGeneratorKey, ++this.nextKey);
    return this.nextKey;
  }

  static clear(): void {
    this.idMap.clear();
    this.nextKey = 0;
  }
}
